12221240

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1103}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 27622080

約数和(自身を除く): 15400840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1103, 1108, 1385, 2206, 2216, 2770, 4412, 5515, 5540, 8824, 11030, 11080, 22060, 44120, 305531, 611062, 1222124, 1527655, 2444248, 3055310, 6110620, 12221240]

約数ペア:

[(1, 12221240), (2, 6110620), (4, 3055310), (5, 2444248), (8, 1527655), (10, 1222124), (20, 611062), (40, 305531), (277, 44120), (554, 22060), (1103, 11080), (1108, 11030), (1385, 8824), (2206, 5540), (2216, 5515), (2770, 4412)]